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. 1988 Oct;54(10):2354–2360. doi: 10.1128/aem.54.10.2354-2360.1988

Microbial Conversion of α-Ionone, α-Methylionone, and α-Isomethylionone

Yoshinari Yamazaki 1, Yumiko Hayashi 1, Masatoshi Arita 1, Tadaharu Hieda 1, Yoichi Mikami 1,†,*
PMCID: PMC204258  PMID: 16347747

Abstract

α-Ionone, α-methylionone, and α-isomethylionone were converted by Aspergillus niger JTS 191. The individual bioconversion products from α-ionone were isolated and identified by spectrometry and organic synthesis. The major products were cis-3-hydroxy-α-ionone, trans-3-hydroxy-α-ionone, and 3-oxo-α-ionone. 2,3-Dehydro-α-ionone, 3,4-dehydro-β-ionone, and 1-(6,6-dimethyl-2-methylene-3-cyclohexenyl)-buten-3-one were also identified. Analogous bioconversion products from α-methylionone and α-isomethylionone were also identified. From results of gas-liquid chromatographic analysis during the fermentation, we propose a metabolic pathway for α-ionones and elucidation of stereochemical features of the bioconversion.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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